~Shard~
Oct 26, 11:20 PM
It honestly depends on if those processors are going to fully saturate the FSB. If the FSB has a high enough data transfer rate then it shouldn't matter much that the cross talk between processors is over the FSB and not onboard via shard cache.
Thanks Eldorian, I appreciate the insight. :cool: Oh, and I think you meant "shared cache", although I honestly don't mind having cache named after me... ;) :D
Thanks Eldorian, I appreciate the insight. :cool: Oh, and I think you meant "shared cache", although I honestly don't mind having cache named after me... ;) :D
kas23
Apr 28, 08:00 AM
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2 like Mac OS X; en) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C134 Safari/6533.18.5)
No surprise the iPad is just a fad and people are starting to realize how limited it is. Its frustrating on a lot of cool websites and no file system makes it very limited.
You apparently missed the part of the report that says:
A combination of strong Q4 sales and the announcement of the iPad 2's launch across major markets at the end of March contributed to Apple's iPad shipments being down 31% sequentially. The full impact of the iPad 2 launch will not register until subsequent quarters, as Apple gets the product into the hands of consumers.
Interpretation in english:
Two major factors contributing to the sequential decline of iPad sales this quarter:
1) A lot of consumers received an iPad 1 as a holiday gift and did not need a 2 and
2) Apple's larger multi-country launch caused inventory constraint and Apple was unable to sell more because they didn't have any excess to sell; i.e., it's a really popular device and we anticipate that being reflected in next quarter's sales report.
That is true, but I would argue that Apple likely sold more iPad 2s through the end of march than during the whole month of April.
As for too many people buying iPad 1 for Christmas, thus denting iPad 2 sales, well, all previous iPad 1 sales are included in these numbers, are they not? Therefore, even will that binge of iPad 1 purchases during Christmas, these numbers are still surprisingly unimpressive.
No surprise the iPad is just a fad and people are starting to realize how limited it is. Its frustrating on a lot of cool websites and no file system makes it very limited.
You apparently missed the part of the report that says:
A combination of strong Q4 sales and the announcement of the iPad 2's launch across major markets at the end of March contributed to Apple's iPad shipments being down 31% sequentially. The full impact of the iPad 2 launch will not register until subsequent quarters, as Apple gets the product into the hands of consumers.
Interpretation in english:
Two major factors contributing to the sequential decline of iPad sales this quarter:
1) A lot of consumers received an iPad 1 as a holiday gift and did not need a 2 and
2) Apple's larger multi-country launch caused inventory constraint and Apple was unable to sell more because they didn't have any excess to sell; i.e., it's a really popular device and we anticipate that being reflected in next quarter's sales report.
That is true, but I would argue that Apple likely sold more iPad 2s through the end of march than during the whole month of April.
As for too many people buying iPad 1 for Christmas, thus denting iPad 2 sales, well, all previous iPad 1 sales are included in these numbers, are they not? Therefore, even will that binge of iPad 1 purchases during Christmas, these numbers are still surprisingly unimpressive.
Multimedia
Oct 25, 10:42 PM
If it's a simple swap of processors, then I would believe the rumors. :) 8-cores, wow! Much much faster than anyone anticipated.Bulletin. Many thousands of us knew it would be this soon. :)
Edge100
Apr 15, 12:21 PM
All things being equal, they prevent HIV versus not using them. But the promotion of a sexually promiscuous lifestyle increases the risk overall. That's what that argument is about, not that hard to get, really.
That's NOT what the argument is about. Your church LIED to people about the efficacy of condoms - people for whom the only source of that information was the Catholic church.
And they lied about it to married couples, too.
Oh, and just in case we're not clear on this: abstinence-only education doesn't work.
That's NOT what the argument is about. Your church LIED to people about the efficacy of condoms - people for whom the only source of that information was the Catholic church.
And they lied about it to married couples, too.
Oh, and just in case we're not clear on this: abstinence-only education doesn't work.
aiqw9182
Apr 12, 10:21 PM
This is what iMovie after iMovie '06 should have been, if only because it has a PROPER FRICKIN' TIMELINE!
Was really hoping for $199, but $299 isn't bad. I might just upgrade from iMovie '06 (I'm not really a 'pro' editor, but I love my timelines!).
http://www.tuaw.com/2010/10/22/timeline-tweak-returns-imovie-11-to-old-school/
Was really hoping for $199, but $299 isn't bad. I might just upgrade from iMovie '06 (I'm not really a 'pro' editor, but I love my timelines!).
http://www.tuaw.com/2010/10/22/timeline-tweak-returns-imovie-11-to-old-school/
Aduntu
Apr 22, 10:50 PM
Yes, you did. You lumped up three distinct theories about three different aspects of cosmic, geological, and biological history, all because they were an affront to your beliefs (or to your incredulity, whichever fits better).
"Exploding" only applies to the Big Bang Theory (and barely at that). Planetary formation and cell formation are radically different and quite complex, as is the Big Bang Theory. Trying to lump them all into one "explosion" from which your current reality directly came to be only shows your scientific illiteracy, not an inherent weakness in any one of these well-tested ideas.
Listen Bill Nye, I wasn't making a conclusive observation on the history of the earth, universe, or life forms. I was posing a question that most people (for the sake of simplicity, not illiteracy) relate to with a single word, "bang." If I need an expert opinion for my next astronomy class, I'll give you ring.
"Exploding" only applies to the Big Bang Theory (and barely at that). Planetary formation and cell formation are radically different and quite complex, as is the Big Bang Theory. Trying to lump them all into one "explosion" from which your current reality directly came to be only shows your scientific illiteracy, not an inherent weakness in any one of these well-tested ideas.
Listen Bill Nye, I wasn't making a conclusive observation on the history of the earth, universe, or life forms. I was posing a question that most people (for the sake of simplicity, not illiteracy) relate to with a single word, "bang." If I need an expert opinion for my next astronomy class, I'll give you ring.
macenforcer
Aug 29, 02:44 PM
Um....should we just not heat our homes then? You first.
Even early man built fires to stay warm.
Yeah but he should have been using Taun Tauns. ;)
Even early man built fires to stay warm.
Yeah but he should have been using Taun Tauns. ;)
javajedi
Oct 12, 07:59 PM
Originally posted by ddtlm
Anyway I've had my fun here for now. I think it is settled that the G4 does poorly at this particular float test. I've done everything I can think of and gone though all sorts of variations of the loop trying to increase the IPC but I could never make significant headway on either the PC or the Mac.
That said, this test is essentialy a test where we do 400000000 double precision square roots which we don't even store and nothing else. There are no memory access, only very predictable branches. I have radically changed the loop and compiler flags and essentially nothing besides the sqrt() makes any difference.
I do not regard this test as important in the overall picture. It does not illustrate anything important to anyone, unless someone sits around doing square roots all day.
I might also add that designing a meaningful benchmark is very hard. I think SPEC is about as good as it gets, and yes the G4 looses in floats there too. :)
I'm in the process of figuring out vMathLib. I'm a Java guy, so all this Altivec stuff looks totally foreign to me :(
Never the less, once I get it working, I'll share the results with you folks.
Also: If anyone here wants me to try something, G3 vs G4, or whatever, aside from the square root and integer mult, let me know. I'd actually like to make full featured cocoa app full of test suites.
Anyway I've had my fun here for now. I think it is settled that the G4 does poorly at this particular float test. I've done everything I can think of and gone though all sorts of variations of the loop trying to increase the IPC but I could never make significant headway on either the PC or the Mac.
That said, this test is essentialy a test where we do 400000000 double precision square roots which we don't even store and nothing else. There are no memory access, only very predictable branches. I have radically changed the loop and compiler flags and essentially nothing besides the sqrt() makes any difference.
I do not regard this test as important in the overall picture. It does not illustrate anything important to anyone, unless someone sits around doing square roots all day.
I might also add that designing a meaningful benchmark is very hard. I think SPEC is about as good as it gets, and yes the G4 looses in floats there too. :)
I'm in the process of figuring out vMathLib. I'm a Java guy, so all this Altivec stuff looks totally foreign to me :(
Never the less, once I get it working, I'll share the results with you folks.
Also: If anyone here wants me to try something, G3 vs G4, or whatever, aside from the square root and integer mult, let me know. I'd actually like to make full featured cocoa app full of test suites.
ddtlm
Oct 12, 05:31 PM
JustAGuy:
You should try those tests with some of the compiler flags that I used in my post a few posts up, which I have been editing.
Right now I am looking at the assembly that gcc is generating. It looks like gcc gets the answer in a very strange way.
javajedi:
One more question i have for you while you are responding: What you suggested may very well be accurate, the compiler is making some really poor decisions, however if this were the case, what about javac?
I don't have an answer to that at this time, but it seems to me that we are looking at different quality of JVM's. I could see a P4 beat a G4 by a fair amount, but lets be realistic... the G4 is not so slow as the numbers here have been suggesting.
I wish I knew some PPC assembly. :) I would code up some stuff for that too, and I bet the nubmer of registers would help a lot. Registers are great for loop unrolling.
Anyway, some time ago you asked how the G4 has better scalar units than the G3. Basically the FP units are similar but the G4 unit has a lower instruction latency when doing double precision (in the G3 doubles take one more cycle than singles, on the G4 they are the same). Also, the G4 has 4 integer units where the G3 has only two. This is not always useful, but in this problem if I could do PPC assembly I could easily overwelm all 4 of them.
You should try those tests with some of the compiler flags that I used in my post a few posts up, which I have been editing.
Right now I am looking at the assembly that gcc is generating. It looks like gcc gets the answer in a very strange way.
javajedi:
One more question i have for you while you are responding: What you suggested may very well be accurate, the compiler is making some really poor decisions, however if this were the case, what about javac?
I don't have an answer to that at this time, but it seems to me that we are looking at different quality of JVM's. I could see a P4 beat a G4 by a fair amount, but lets be realistic... the G4 is not so slow as the numbers here have been suggesting.
I wish I knew some PPC assembly. :) I would code up some stuff for that too, and I bet the nubmer of registers would help a lot. Registers are great for loop unrolling.
Anyway, some time ago you asked how the G4 has better scalar units than the G3. Basically the FP units are similar but the G4 unit has a lower instruction latency when doing double precision (in the G3 doubles take one more cycle than singles, on the G4 they are the same). Also, the G4 has 4 integer units where the G3 has only two. This is not always useful, but in this problem if I could do PPC assembly I could easily overwelm all 4 of them.
iJohnHenry
Mar 25, 06:50 PM
@ijh: don't you spend more time here than anybody...?
I try to, but public service keeps dragging me away.
And it's getting damn annoying.
I try to, but public service keeps dragging me away.
And it's getting damn annoying.
iAlan
Mar 11, 09:36 AM
I was at work when the quake hit. Building swayed (its a 3 year old building) more than anything I've experienced in my 10+ years in Tokyo. And the duration of the quake is what surprised (and unnerved me) the most as most are short - and the epicenter was 350K away from Tokyo.
Dozens of small aftershocks, of varying degrees but thankfully calmed down a bit now, although a little shake 10-15 minutes ago.
Had to walk home as the trains were all suspended. The 1.5 hour walk was better than a workout at the gym!
To all in Japan, stay safe.
Sent from my iPhone
Dozens of small aftershocks, of varying degrees but thankfully calmed down a bit now, although a little shake 10-15 minutes ago.
Had to walk home as the trains were all suspended. The 1.5 hour walk was better than a workout at the gym!
To all in Japan, stay safe.
Sent from my iPhone
LagunaSol
Apr 9, 09:24 PM
Real StarCraft for iPad, Blizzard. Make it happen.
Apple OC
Apr 22, 09:19 PM
I would be willing to bet that if given time this thread will be a carbon copy of that one.
That thread should be stickied, because I can't really think of any issue(relevant to this topic) we didn't cover in it.
well let it be the Mods to merge them ... why tell someone to post in an old thread that died and tell them not to post in this thread?
That thread should be stickied, because I can't really think of any issue(relevant to this topic) we didn't cover in it.
well let it be the Mods to merge them ... why tell someone to post in an old thread that died and tell them not to post in this thread?
flopticalcube
Mar 13, 03:36 PM
True, but the total deaths from Chernobyl are unknown. Many people dying in Russia, Norway and other affected countries from cancers or other conditions caused by the contamination aren't included in the totals.
I would still place automobiles as at least an order of magnitude or two greater. No contest.
I would still place automobiles as at least an order of magnitude or two greater. No contest.
lifeinhd
Apr 12, 10:21 PM
This is what iMovie after iMovie '06 should have been, if only because it has a PROPER FRICKIN' TIMELINE!
Was really hoping for $199, but $299 isn't bad. I might just upgrade from iMovie '06 (I'm not really a 'pro' editor, but I love my timelines!).
Was really hoping for $199, but $299 isn't bad. I might just upgrade from iMovie '06 (I'm not really a 'pro' editor, but I love my timelines!).
davelanger
Apr 28, 11:56 AM
This is because they have continued to put time and money in to iOS and not Mac. They have been lazy and done practically done nothing with desktops and their notebooks. They need to start putting emphasis on to Macs now.
Isnt that what they are doing with Lion?
I am quite familiar, perhaps you should read it again.
The iPod was introduced in hit popularity in 2003 / when it was later replaced (in the eyes of masses of people buying them) by the iPhone, and later iPod Touch as the next "new thing".
Do you still see masses of people with White or Black iPods? Or do you see them carrying iPhones or iPod Touches now?
What has been on the news recently the most, sought after by most Apple fans? I don't think it is the iPod.
You dont know what a fad is. Thats like calling dial up internet a fad because now pretty much everyone is using cable or fios internet. An ipod touch is still an ipod, its just better version of an ipod black/white.
A fad is something that comes alot that is huge for a short time then fades out. Just because tech advances doesnt mean the first gen was a fad.
Isnt that what they are doing with Lion?
I am quite familiar, perhaps you should read it again.
The iPod was introduced in hit popularity in 2003 / when it was later replaced (in the eyes of masses of people buying them) by the iPhone, and later iPod Touch as the next "new thing".
Do you still see masses of people with White or Black iPods? Or do you see them carrying iPhones or iPod Touches now?
What has been on the news recently the most, sought after by most Apple fans? I don't think it is the iPod.
You dont know what a fad is. Thats like calling dial up internet a fad because now pretty much everyone is using cable or fios internet. An ipod touch is still an ipod, its just better version of an ipod black/white.
A fad is something that comes alot that is huge for a short time then fades out. Just because tech advances doesnt mean the first gen was a fad.
Evangelion
Jul 12, 05:05 AM
Er...have you seen the MacBook Pro pricing? The MacBook pricing? The iMac pricing? The Mini pricing? (Which went UP by a fair amount). If you're thinking that x86 processors are cheaper than PPC, you're sadly mistaken. Cheap computers being cheap has just about nothing whatsoever to do with the CPU....
--Eric
Well, the Mini got more expensive, but it's capabilities went WAY up. Optical audio in and out, twice the USB-ports (fixing the two biggest complaints about the old Mini), built-in wireless, about twice as fast CPU (hell, the new low-end is propably over 50% faster than the old hi-end!) and Core Image compliant video.
Comparing price and capabilities, The Mini just got a whole lot cheaper :). The low-end Mini costs the same as the old hi-end Mini, but the new low-end Mini is a lot better than the old hi-end Mini.
--Eric
Well, the Mini got more expensive, but it's capabilities went WAY up. Optical audio in and out, twice the USB-ports (fixing the two biggest complaints about the old Mini), built-in wireless, about twice as fast CPU (hell, the new low-end is propably over 50% faster than the old hi-end!) and Core Image compliant video.
Comparing price and capabilities, The Mini just got a whole lot cheaper :). The low-end Mini costs the same as the old hi-end Mini, but the new low-end Mini is a lot better than the old hi-end Mini.
Dr.Gargoyle
Aug 29, 02:59 PM
The point is that Greenpeace opposes ALL R&D; into GM foods, just as G.W. opposes ALL R&D; into stem cell research, including research to use stem cells w/o harming the fetus.
First, R&D; should never be banned. However, we should not implement everything we find out in our labs. It is a huge difference in getting to know how we can alter the genetical code and actually do it in a grand scale. THAT if anything will be our end.
Stem cells is an entirely different story. That is a political/religious question about when life begins and also OT.
First, R&D; should never be banned. However, we should not implement everything we find out in our labs. It is a huge difference in getting to know how we can alter the genetical code and actually do it in a grand scale. THAT if anything will be our end.
Stem cells is an entirely different story. That is a political/religious question about when life begins and also OT.
capvideo
Mar 20, 01:32 PM
It's not just iTunes, but all copyright law. A CD is a license to use the track, not ownership of the song's music or lyrics. An AAC from iTunes is the same. Same with movies and software, etc. In any situation, you are buying a license to use the song, not to take ownership of the song (unless you're buying the *rights* to a song, then you really do own it).
No, this is completely wrong. Copyright is nothing more nor less than a monopoly on distribution of copies of the copyrighted work.
Anyone purchasing a copy of the copyrighted work owns that copy. They do not have a license to that copy, they own that copy. They don't need a license to do anything with that copy except for re-distributing copies of it. Because the copyright holder holds the copyright monopoly, only the copyright holder may copy the work in question and then distribute those copies. Anyone else who wants to re-distribute further copies must get a license from the copyright holder.
But no license is required to purchase a work or to use that work once it is purchased. Copyright is a restriction on what you can do with the things you have purchased and now own.
This is how the various open source licenses work, for example. They only come into play when someone tries to redistribute copies. That's the only time they *can* come into play; without any redistribution of copies, copyright law has no effect.
For example, you can, and have every right to, sell things that you have purchased. No license is required to sell your furniture, your stereo equipment, or the CDs that you have purchased or the books that you have purchased. At the turn of the century, book publishers tried to place a EULA inside their books forbidding resale. The courts--up to the Supreme Court of the United States--said that the copyright monopoly does not cover that, and thus no EULA based on the copyright monopoly can restrict it.
In the Betamax case, the Supreme Court used the same reasoning to say that time-shifting is not a copyright violation. The copyright monopoly is a restriction on what owners can do with the things that they have purchased and now own, and must be strictly interpreted for this reason.
When you buy a book, a CD, or anything else that is copyrighted, you own that copy, and may do whatever you want with that copy, with the exception that you cannot violate the copyright holder's monopoly on making copies and redistributing those copies. You can make as many copies as you want, as long as you don't distribute them; and you can distribute the original copy as long as it is the original. Neither of those acts infringes on the copyright holder's monopoly on copying and redistributing.
This is why the DMCA had to be so convoluted, making the act of circumvention illegal, rather than going to the heart of what the RIAA, etc., wanted.
I rant much more about this at my blog:
http://www.hoboes.com/Mimsy/?ART=9
Jerry
No, this is completely wrong. Copyright is nothing more nor less than a monopoly on distribution of copies of the copyrighted work.
Anyone purchasing a copy of the copyrighted work owns that copy. They do not have a license to that copy, they own that copy. They don't need a license to do anything with that copy except for re-distributing copies of it. Because the copyright holder holds the copyright monopoly, only the copyright holder may copy the work in question and then distribute those copies. Anyone else who wants to re-distribute further copies must get a license from the copyright holder.
But no license is required to purchase a work or to use that work once it is purchased. Copyright is a restriction on what you can do with the things you have purchased and now own.
This is how the various open source licenses work, for example. They only come into play when someone tries to redistribute copies. That's the only time they *can* come into play; without any redistribution of copies, copyright law has no effect.
For example, you can, and have every right to, sell things that you have purchased. No license is required to sell your furniture, your stereo equipment, or the CDs that you have purchased or the books that you have purchased. At the turn of the century, book publishers tried to place a EULA inside their books forbidding resale. The courts--up to the Supreme Court of the United States--said that the copyright monopoly does not cover that, and thus no EULA based on the copyright monopoly can restrict it.
In the Betamax case, the Supreme Court used the same reasoning to say that time-shifting is not a copyright violation. The copyright monopoly is a restriction on what owners can do with the things that they have purchased and now own, and must be strictly interpreted for this reason.
When you buy a book, a CD, or anything else that is copyrighted, you own that copy, and may do whatever you want with that copy, with the exception that you cannot violate the copyright holder's monopoly on making copies and redistributing those copies. You can make as many copies as you want, as long as you don't distribute them; and you can distribute the original copy as long as it is the original. Neither of those acts infringes on the copyright holder's monopoly on copying and redistributing.
This is why the DMCA had to be so convoluted, making the act of circumvention illegal, rather than going to the heart of what the RIAA, etc., wanted.
I rant much more about this at my blog:
http://www.hoboes.com/Mimsy/?ART=9
Jerry
LQYoshi
Apr 11, 10:48 AM
I'm getting the 2010 mac mini Monday (and switching to OSX) but kinda worried what my dad will say about me getting one... I guess he can't do anything about it since it's my money
ciTiger
Apr 28, 07:57 AM
Growth 187.9 %... LOL
They sure need big vaults too keep all that money...
They sure need big vaults too keep all that money...
miles01110
Apr 28, 07:22 AM
Surprise. The major enterprise players take the top three spots.
dante@sisna.com
Sep 12, 06:50 PM
So based on what was shown today, the iTV itself is not presenting itself as a recording solution, only playback.
If that is the case, then it still misses the mark because you cannot do the one thing that a PVR can do easily which is to pick up the remote and click record without getting out of your chair (assuming your Mac is in a different room than the TV).
That is by NO MEANS CERTAIN!!! Think about it: FrontRow's Remote will work through this device communicating with the desktop to load content. iTV itself connects directly to the web and to iTunes to get trailers, etc.
It is VERY feasible that a widget, or external USB device, of some sort will allow PVR (like elgato) to work via remote back to the software on the server. This would not be a difficult addon.
If that is the case, then it still misses the mark because you cannot do the one thing that a PVR can do easily which is to pick up the remote and click record without getting out of your chair (assuming your Mac is in a different room than the TV).
That is by NO MEANS CERTAIN!!! Think about it: FrontRow's Remote will work through this device communicating with the desktop to load content. iTV itself connects directly to the web and to iTunes to get trailers, etc.
It is VERY feasible that a widget, or external USB device, of some sort will allow PVR (like elgato) to work via remote back to the software on the server. This would not be a difficult addon.
javajedi
Oct 10, 04:46 PM
Originally posted by ddtlm
MacCoaster:
(Don't be offended if I repeat myself a few times, I want to make sure everyone gets it. Not trying to say anything about you in particular.)
Anyway, you missed my point. I know very well that the G4 is at a hardware disadvantage. I pretty much said that when you see a G4 being beat by margins greater than 4x or 5x, then you can be pretty sure there is ALSO, note ALSO, a software disadvantage. Hopefully everyone will see what I meant that time. :)
I'm glad to see that many people here agree that the G4 isn't really a faster chip than the x86 competition, but I want to see moderation and understanding of the "benchmarks" that have popped up showing an unbelievably bad situation for the G4.
Remember folks, if the test shows a G4 slower than a P4 per clock cycle then the test probably is handing the software advantage to the P4. Note, for perfect clarity, that I said per clock cycle performance and not overall performance.
If you recall the java program I created ran without modification on a p4/g4, in addition others on this board have ran it on their Athlon systems. The code is unbelievably simple, I did not give the p4 any "software advatage" whatsoever (and as I said, the code remained changed).
The only difference (and this could be a big difference), is the different versions of the jvm on the mac, and on windows. On my p4 pc I was using jvm version 1.4.x, while Mac OS X is limited to 1.3.x. To factor this variable out of the equation I decided to port it directly to Mac OS X and created a cocoa application. Java is now out of the equation.
The cocoa version, as well as it's source is located at http://members.ij.net/javajedi/FPMathTest.dmg.gz
My PowerBook G4 800 now takes *only* 94 seconds running natively. The P4 running the slower java version (slower because it�s interpreted and the byte code translation) finishes it in 5.9 seconds. Please feel free to take a look. I don't see how the P4, or any other of the x86 processors are cheating. I've tried to make it as fair and possible - to the extent of creating a cocoa app.
Thanks for your thoughts!
Kevin
MacCoaster:
(Don't be offended if I repeat myself a few times, I want to make sure everyone gets it. Not trying to say anything about you in particular.)
Anyway, you missed my point. I know very well that the G4 is at a hardware disadvantage. I pretty much said that when you see a G4 being beat by margins greater than 4x or 5x, then you can be pretty sure there is ALSO, note ALSO, a software disadvantage. Hopefully everyone will see what I meant that time. :)
I'm glad to see that many people here agree that the G4 isn't really a faster chip than the x86 competition, but I want to see moderation and understanding of the "benchmarks" that have popped up showing an unbelievably bad situation for the G4.
Remember folks, if the test shows a G4 slower than a P4 per clock cycle then the test probably is handing the software advantage to the P4. Note, for perfect clarity, that I said per clock cycle performance and not overall performance.
If you recall the java program I created ran without modification on a p4/g4, in addition others on this board have ran it on their Athlon systems. The code is unbelievably simple, I did not give the p4 any "software advatage" whatsoever (and as I said, the code remained changed).
The only difference (and this could be a big difference), is the different versions of the jvm on the mac, and on windows. On my p4 pc I was using jvm version 1.4.x, while Mac OS X is limited to 1.3.x. To factor this variable out of the equation I decided to port it directly to Mac OS X and created a cocoa application. Java is now out of the equation.
The cocoa version, as well as it's source is located at http://members.ij.net/javajedi/FPMathTest.dmg.gz
My PowerBook G4 800 now takes *only* 94 seconds running natively. The P4 running the slower java version (slower because it�s interpreted and the byte code translation) finishes it in 5.9 seconds. Please feel free to take a look. I don't see how the P4, or any other of the x86 processors are cheating. I've tried to make it as fair and possible - to the extent of creating a cocoa app.
Thanks for your thoughts!
Kevin
